Brown joins a diverse range of ambassadors for the global organisation advocating for the rights of children including Katy Perry, Serena Williams, Liam Neeson, David Beckham, Susan Sarandon, Vanessa Redgrave, Whoopi Goldberg, Jackie Chan, Orlando Bloom and Priyanka Chopra. Previous ambassadors have included Hepburn, Jessica Lange, Richard Attenborough, Roger Federer and Roger Moore.

“I will speak out for the millions of children and young people whose voices have been silenced for far too long,” Brown said, of her appointment to the role. “I will shine a light on the issues that vulnerable children and young people have suffered around the world including representing them at places where they haven’t yet had a seat at the table and most of all, I will make sure children and young people know their rights.”

In particular, Brown said that she wanted to shine a spotlight on access to education for children around the world, ending bullying, ending violence against children and providing all young people with access to “a safe environment and clean water.”

Millie Bobby Brown follows her “hero” Audrey Hepburn into new charity venture